Reporting Category 1 STAAR Review

What is the difference between physical and chemical changes in matter?

• Physical changes alter the substance's identity

• Chemical changes do not alter the substance's identity

• Physical changes do not alter the substance's identity

• Chemical changes are reversible

Tags

NGSS.MS-PS1-4

How many Oxygen atoms are in H₂SO₄?

• 4

• 3

• 2

• 1

Tags

NGSS.MS-PS1-1

How many kcal are available for the tertiary consumer in the Acorn to Coyote food chain?

• 1 kcal

• 10 kcal

• 100 kcal

• 1000 kcal

Tags

NGSS.MS-LS2-3

What is the main difference between a physical and a chemical change?

• Physical changes create new substances, while chemical changes do not.

• Chemical changes are easily reversible, while physical changes are not.

• Physical changes affect the state or appearance, while chemical changes produce new substances.

• Chemical changes only occur in living organisms.

Tags

NGSS.MS-PS1-1

Which of these is an example of a chemical change?

• Boiling water

• Tearing paper

• Dissolving sugar in water

• Cooking an egg

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a characteristic of metals?

• Low luster

• Poor conductivity

• Malleability

• Found mostly as gases

How do most metals react with acids?

• They do not react

• They create hydrogen gas

• They dissolve completely

• They form a solid precipitate

Tags

NGSS.MS-PS1-2

Which of the following is a characteristic of metalloids?

• High malleability

• Found mostly as gases

• Fair conductivity

• High reactivity with acids

Which of the following is true about the conductivity of metals?

• Poor

• Fair

• Good

• None

What is the ductility of most metals?

• Low

• High

• None

• Moderate